@firebase/storage/dist/index.esm2017.js

import firebase from '@firebase/app';
import { FirebaseError, getModularInstance } from '@firebase/util';
import { Component } from '@firebase/component';

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * @fileoverview Constants used in the Firebase Storage library.
 */
/**
 * Domain name for firebase storage.
 */
const DEFAULT_HOST = 'firebasestorage.googleapis.com';
/**
 * The key in Firebase config json for the storage bucket.
 */
const CONFIG_STORAGE_BUCKET_KEY = 'storageBucket';
/**
 * 2 minutes
 *
 * The timeout for all operations except upload.
 */
const DEFAULT_MAX_OPERATION_RETRY_TIME = 2 * 60 * 1000;
/**
 * 10 minutes
 *
 * The timeout for upload.
 */
const DEFAULT_MAX_UPLOAD_RETRY_TIME = 10 * 60 * 1000;

/**
 * An error returned by the Firebase Storage SDK.
 * @public
 */
class FirebaseStorageError extends FirebaseError {
    /**
     * @param code - A StorageErrorCode string to be prefixed with 'storage/' and
     *  added to the end of the message.
     * @param message  - Error message.
     */
    constructor(code, message) {
        super(prependCode(code), `Firebase Storage: ${message} (${prependCode(code)})`);
        /**
         * Stores custom error data unque to FirebaseStorageError.
         */
        this.customData = { serverResponse: null };
        this._baseMessage = this.message;
        // Without this, `instanceof FirebaseStorageError`, in tests for example,
        // returns false.
        Object.setPrototypeOf(this, FirebaseStorageError.prototype);
    }
    /**
     * Compares a StorageErrorCode against this error's code, filtering out the prefix.
     */
    _codeEquals(code) {
        return prependCode(code) === this.code;
    }
    /**
     * Optional response message that was added by the server.
     */
    get serverResponse() {
        return this.customData.serverResponse;
    }
    set serverResponse(serverResponse) {
        this.customData.serverResponse = serverResponse;
        if (this.customData.serverResponse) {
            this.message = `${this._baseMessage}\n${this.customData.serverResponse}`;
        }
        else {
            this.message = this._baseMessage;
        }
    }
}
function prependCode(code) {
    return 'storage/' + code;
}
function unknown() {
    const message = 'An unknown error occurred, please check the error payload for ' +
        'server response.';
    return new FirebaseStorageError("unknown" /* UNKNOWN */, message);
}
function objectNotFound(path) {
    return new FirebaseStorageError("object-not-found" /* OBJECT_NOT_FOUND */, "Object '" + path + "' does not exist.");
}
function quotaExceeded(bucket) {
    return new FirebaseStorageError("quota-exceeded" /* QUOTA_EXCEEDED */, "Quota for bucket '" +
        bucket +
        "' exceeded, please view quota on " +
        'https://firebase.google.com/pricing/.');
}
function unauthenticated() {
    const message = 'User is not authenticated, please authenticate using Firebase ' +
        'Authentication and try again.';
    return new FirebaseStorageError("unauthenticated" /* UNAUTHENTICATED */, message);
}
function unauthorizedApp() {
    return new FirebaseStorageError("unauthorized-app" /* UNAUTHORIZED_APP */, 'This app does not have permission to access Firebase Storage on this project.');
}
function unauthorized(path) {
    return new FirebaseStorageError("unauthorized" /* UNAUTHORIZED */, "User does not have permission to access '" + path + "'.");
}
function retryLimitExceeded() {
    return new FirebaseStorageError("retry-limit-exceeded" /* RETRY_LIMIT_EXCEEDED */, 'Max retry time for operation exceeded, please try again.');
}
function canceled() {
    return new FirebaseStorageError("canceled" /* CANCELED */, 'User canceled the upload/download.');
}
function invalidUrl(url) {
    return new FirebaseStorageError("invalid-url" /* INVALID_URL */, "Invalid URL '" + url + "'.");
}
function invalidDefaultBucket(bucket) {
    return new FirebaseStorageError("invalid-default-bucket" /* INVALID_DEFAULT_BUCKET */, "Invalid default bucket '" + bucket + "'.");
}
function noDefaultBucket() {
    return new FirebaseStorageError("no-default-bucket" /* NO_DEFAULT_BUCKET */, 'No default bucket ' +
        "found. Did you set the '" +
        CONFIG_STORAGE_BUCKET_KEY +
        "' property when initializing the app?");
}
function cannotSliceBlob() {
    return new FirebaseStorageError("cannot-slice-blob" /* CANNOT_SLICE_BLOB */, 'Cannot slice blob for upload. Please retry the upload.');
}
function serverFileWrongSize() {
    return new FirebaseStorageError("server-file-wrong-size" /* SERVER_FILE_WRONG_SIZE */, 'Server recorded incorrect upload file size, please retry the upload.');
}
function noDownloadURL() {
    return new FirebaseStorageError("no-download-url" /* NO_DOWNLOAD_URL */, 'The given file does not have any download URLs.');
}
function invalidArgument(message) {
    return new FirebaseStorageError("invalid-argument" /* INVALID_ARGUMENT */, message);
}
function appDeleted() {
    return new FirebaseStorageError("app-deleted" /* APP_DELETED */, 'The Firebase app was deleted.');
}
/**
 * @param name - The name of the operation that was invalid.
 */
function invalidRootOperation(name) {
    return new FirebaseStorageError("invalid-root-operation" /* INVALID_ROOT_OPERATION */, "The operation '" +
        name +
        "' cannot be performed on a root reference, create a non-root " +
        "reference using child, such as .child('file.png').");
}
/**
 * @param format - The format that was not valid.
 * @param message - A message describing the format violation.
 */
function invalidFormat(format, message) {
    return new FirebaseStorageError("invalid-format" /* INVALID_FORMAT */, "String does not match format '" + format + "': " + message);
}
/**
 * @param message - A message describing the internal error.
 */
function internalError(message) {
    throw new FirebaseStorageError("internal-error" /* INTERNAL_ERROR */, 'Internal error: ' + message);
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * An enumeration of the possible string formats for upload.
 * @public
 */
const StringFormat = {
    /**
     * Indicates the string should be interpreted "raw", that is, as normal text.
     * The string will be interpreted as UTF-16, then uploaded as a UTF-8 byte
     * sequence.
     * Example: The string 'Hello! \\ud83d\\ude0a' becomes the byte sequence
     * 48 65 6c 6c 6f 21 20 f0 9f 98 8a
     */
    RAW: 'raw',
    /**
     * Indicates the string should be interpreted as base64-encoded data.
     * Padding characters (trailing '='s) are optional.
     * Example: The string 'rWmO++E6t7/rlw==' becomes the byte sequence
     * ad 69 8e fb e1 3a b7 bf eb 97
     */
    BASE64: 'base64',
    /**
     * Indicates the string should be interpreted as base64url-encoded data.
     * Padding characters (trailing '='s) are optional.
     * Example: The string 'rWmO--E6t7_rlw==' becomes the byte sequence
     * ad 69 8e fb e1 3a b7 bf eb 97
     */
    BASE64URL: 'base64url',
    /**
     * Indicates the string is a data URL, such as one obtained from
     * canvas.toDataURL().
     * Example: the string 'data:application/octet-stream;base64,aaaa'
     * becomes the byte sequence
     * 69 a6 9a
     * (the content-type "application/octet-stream" is also applied, but can
     * be overridden in the metadata object).
     */
    DATA_URL: 'data_url'
};
class StringData {
    constructor(data, contentType) {
        this.data = data;
        this.contentType = contentType || null;
    }
}
function dataFromString(format, stringData) {
    switch (format) {
        case StringFormat.RAW:
            return new StringData(utf8Bytes_(stringData));
        case StringFormat.BASE64:
        case StringFormat.BASE64URL:
            return new StringData(base64Bytes_(format, stringData));
        case StringFormat.DATA_URL:
            return new StringData(dataURLBytes_(stringData), dataURLContentType_(stringData));
        // do nothing
    }
    // assert(false);
    throw unknown();
}
function utf8Bytes_(value) {
    const b = [];
    for (let i = 0; i < value.length; i++) {
        let c = value.charCodeAt(i);
        if (c <= 127) {
            b.push(c);
        }
        else {
            if (c <= 2047) {
                b.push(192 | (c >> 6), 128 | (c & 63));
            }
            else {
                if ((c & 64512) === 55296) {
                    // The start of a surrogate pair.
                    const valid = i < value.length - 1 && (value.charCodeAt(i + 1) & 64512) === 56320;
                    if (!valid) {
                        // The second surrogate wasn't there.
                        b.push(239, 191, 189);
                    }
                    else {
                        const hi = c;
                        const lo = value.charCodeAt(++i);
                        c = 65536 | ((hi & 1023) << 10) | (lo & 1023);
                        b.push(240 | (c >> 18), 128 | ((c >> 12) & 63), 128 | ((c >> 6) & 63), 128 | (c & 63));
                    }
                }
                else {
                    if ((c & 64512) === 56320) {
                        // Invalid low surrogate.
                        b.push(239, 191, 189);
                    }
                    else {
                        b.push(224 | (c >> 12), 128 | ((c >> 6) & 63), 128 | (c & 63));
                    }
                }
            }
        }
    }
    return new Uint8Array(b);
}
function percentEncodedBytes_(value) {
    let decoded;
    try {
        decoded = decodeURIComponent(value);
    }
    catch (e) {
        throw invalidFormat(StringFormat.DATA_URL, 'Malformed data URL.');
    }
    return utf8Bytes_(decoded);
}
function base64Bytes_(format, value) {
    switch (format) {
        case StringFormat.BASE64: {
            const hasMinus = value.indexOf('-') !== -1;
            const hasUnder = value.indexOf('_') !== -1;
            if (hasMinus || hasUnder) {
                const invalidChar = hasMinus ? '-' : '_';
                throw invalidFormat(format, "Invalid character '" +
                    invalidChar +
                    "' found: is it base64url encoded?");
            }
            break;
        }
        case StringFormat.BASE64URL: {
            const hasPlus = value.indexOf('+') !== -1;
            const hasSlash = value.indexOf('/') !== -1;
            if (hasPlus || hasSlash) {
                const invalidChar = hasPlus ? '+' : '/';
                throw invalidFormat(format, "Invalid character '" + invalidChar + "' found: is it base64 encoded?");
            }
            value = value.replace(/-/g, '+').replace(/_/g, '/');
            break;
        }
        // do nothing
    }
    let bytes;
    try {
        bytes = atob(value);
    }
    catch (e) {
        throw invalidFormat(format, 'Invalid character found');
    }
    const array = new Uint8Array(bytes.length);
    for (let i = 0; i < bytes.length; i++) {
        array[i] = bytes.charCodeAt(i);
    }
    return array;
}
class DataURLParts {
    constructor(dataURL) {
        this.base64 = false;
        this.contentType = null;
        const matches = dataURL.match(/^data:([^,]+)?,/);
        if (matches === null) {
            throw invalidFormat(StringFormat.DATA_URL, "Must be formatted 'data:[<mediatype>][;base64],<data>");
        }
        const middle = matches[1] || null;
        if (middle != null) {
            this.base64 = endsWith(middle, ';base64');
            this.contentType = this.base64
                ? middle.substring(0, middle.length - ';base64'.length)
                : middle;
        }
        this.rest = dataURL.substring(dataURL.indexOf(',') + 1);
    }
}
function dataURLBytes_(dataUrl) {
    const parts = new DataURLParts(dataUrl);
    if (parts.base64) {
        return base64Bytes_(StringFormat.BASE64, parts.rest);
    }
    else {
        return percentEncodedBytes_(parts.rest);
    }
}
function dataURLContentType_(dataUrl) {
    const parts = new DataURLParts(dataUrl);
    return parts.contentType;
}
function endsWith(s, end) {
    const longEnough = s.length >= end.length;
    if (!longEnough) {
        return false;
    }
    return s.substring(s.length - end.length) === end;
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * An event that is triggered on a task.
 */
const TaskEvent = {
    /**
     * For this event,
     * <ul>
     *   <li>The `next` function is triggered on progress updates and when the
     *       task is paused/resumed with an `UploadTaskSnapshot` as the first
     *       argument.</li>
     *   <li>The `error` function is triggered if the upload is canceled or fails
     *       for another reason.</li>
     *   <li>The `complete` function is triggered if the upload completes
     *       successfully.</li>
     * </ul>
     */
    STATE_CHANGED: 'state_changed'
};
/**
 * Represents the current state of a running upload.
 */
const TaskState = {
    /** The task is currently transferring data. */
    RUNNING: 'running',
    /** The task was paused by the user. */
    PAUSED: 'paused',
    /** The task completed successfully. */
    SUCCESS: 'success',
    /** The task was canceled. */
    CANCELED: 'canceled',
    /** The task failed with an error. */
    ERROR: 'error'
};
function taskStateFromInternalTaskState(state) {
    switch (state) {
        case "running" /* RUNNING */:
        case "pausing" /* PAUSING */:
        case "canceling" /* CANCELING */:
            return TaskState.RUNNING;
        case "paused" /* PAUSED */:
            return TaskState.PAUSED;
        case "success" /* SUCCESS */:
            return TaskState.SUCCESS;
        case "canceled" /* CANCELED */:
            return TaskState.CANCELED;
        case "error" /* ERROR */:
            return TaskState.ERROR;
        default:
            // TODO(andysoto): assert(false);
            return TaskState.ERROR;
    }
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Error codes for requests made by the the XhrIo wrapper.
 */
var ErrorCode;
(function (ErrorCode) {
    ErrorCode[ErrorCode["NO_ERROR"] = 0] = "NO_ERROR";
    ErrorCode[ErrorCode["NETWORK_ERROR"] = 1] = "NETWORK_ERROR";
    ErrorCode[ErrorCode["ABORT"] = 2] = "ABORT";
})(ErrorCode || (ErrorCode = {}));

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * We use this instead of goog.net.XhrIo because goog.net.XhrIo is hyuuuuge and
 * doesn't work in React Native on Android.
 */
class NetworkXhrIo {
    constructor() {
        this.sent_ = false;
        this.xhr_ = new XMLHttpRequest();
        this.errorCode_ = ErrorCode.NO_ERROR;
        this.sendPromise_ = new Promise(resolve => {
            this.xhr_.addEventListener('abort', () => {
                this.errorCode_ = ErrorCode.ABORT;
                resolve(this);
            });
            this.xhr_.addEventListener('error', () => {
                this.errorCode_ = ErrorCode.NETWORK_ERROR;
                resolve(this);
            });
            this.xhr_.addEventListener('load', () => {
                resolve(this);
            });
        });
    }
    /**
     * @override
     */
    send(url, method, body, headers) {
        if (this.sent_) {
            throw internalError('cannot .send() more than once');
        }
        this.sent_ = true;
        this.xhr_.open(method, url, true);
        if (headers !== undefined) {
            for (const key in headers) {
                if (headers.hasOwnProperty(key)) {
                    this.xhr_.setRequestHeader(key, headers[key].toString());
                }
            }
        }
        if (body !== undefined) {
            this.xhr_.send(body);
        }
        else {
            this.xhr_.send();
        }
        return this.sendPromise_;
    }
    /**
     * @override
     */
    getErrorCode() {
        if (!this.sent_) {
            throw internalError('cannot .getErrorCode() before sending');
        }
        return this.errorCode_;
    }
    /**
     * @override
     */
    getStatus() {
        if (!this.sent_) {
            throw internalError('cannot .getStatus() before sending');
        }
        try {
            return this.xhr_.status;
        }
        catch (e) {
            return -1;
        }
    }
    /**
     * @override
     */
    getResponseText() {
        if (!this.sent_) {
            throw internalError('cannot .getResponseText() before sending');
        }
        return this.xhr_.responseText;
    }
    /**
     * Aborts the request.
     * @override
     */
    abort() {
        this.xhr_.abort();
    }
    /**
     * @override
     */
    getResponseHeader(header) {
        return this.xhr_.getResponseHeader(header);
    }
    /**
     * @override
     */
    addUploadProgressListener(listener) {
        if (this.xhr_.upload != null) {
            this.xhr_.upload.addEventListener('progress', listener);
        }
    }
    /**
     * @override
     */
    removeUploadProgressListener(listener) {
        if (this.xhr_.upload != null) {
            this.xhr_.upload.removeEventListener('progress', listener);
        }
    }
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Factory-like class for creating XhrIo instances.
 */
class XhrIoPool {
    createXhrIo() {
        return new NetworkXhrIo();
    }
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Firebase Storage location data.
 *
 * @internal
 */
class Location {
    constructor(bucket, path) {
        this.bucket = bucket;
        this.path_ = path;
    }
    get path() {
        return this.path_;
    }
    get isRoot() {
        return this.path.length === 0;
    }
    fullServerUrl() {
        const encode = encodeURIComponent;
        return '/b/' + encode(this.bucket) + '/o/' + encode(this.path);
    }
    bucketOnlyServerUrl() {
        const encode = encodeURIComponent;
        return '/b/' + encode(this.bucket) + '/o';
    }
    static makeFromBucketSpec(bucketString, host) {
        let bucketLocation;
        try {
            bucketLocation = Location.makeFromUrl(bucketString, host);
        }
        catch (e) {
            // Not valid URL, use as-is. This lets you put bare bucket names in
            // config.
            return new Location(bucketString, '');
        }
        if (bucketLocation.path === '') {
            return bucketLocation;
        }
        else {
            throw invalidDefaultBucket(bucketString);
        }
    }
    static makeFromUrl(url, host) {
        let location = null;
        const bucketDomain = '([A-Za-z0-9.\\-_]+)';
        function gsModify(loc) {
            if (loc.path.charAt(loc.path.length - 1) === '/') {
                loc.path_ = loc.path_.slice(0, -1);
            }
        }
        const gsPath = '(/(.*))?$';
        const gsRegex = new RegExp('^gs://' + bucketDomain + gsPath, 'i');
        const gsIndices = { bucket: 1, path: 3 };
        function httpModify(loc) {
            loc.path_ = decodeURIComponent(loc.path);
        }
        const version = 'v[A-Za-z0-9_]+';
        const firebaseStorageHost = host.replace(/[.]/g, '\\.');
        const firebaseStoragePath = '(/([^?#]*).*)?$';
        const firebaseStorageRegExp = new RegExp(`^https?://${firebaseStorageHost}/${version}/b/${bucketDomain}/o${firebaseStoragePath}`, 'i');
        const firebaseStorageIndices = { bucket: 1, path: 3 };
        const cloudStorageHost = host === DEFAULT_HOST
            ? '(?:storage.googleapis.com|storage.cloud.google.com)'
            : host;
        const cloudStoragePath = '([^?#]*)';
        const cloudStorageRegExp = new RegExp(`^https?://${cloudStorageHost}/${bucketDomain}/${cloudStoragePath}`, 'i');
        const cloudStorageIndices = { bucket: 1, path: 2 };
        const groups = [
            { regex: gsRegex, indices: gsIndices, postModify: gsModify },
            {
                regex: firebaseStorageRegExp,
                indices: firebaseStorageIndices,
                postModify: httpModify
            },
            {
                regex: cloudStorageRegExp,
                indices: cloudStorageIndices,
                postModify: httpModify
            }
        ];
        for (let i = 0; i < groups.length; i++) {
            const group = groups[i];
            const captures = group.regex.exec(url);
            if (captures) {
                const bucketValue = captures[group.indices.bucket];
                let pathValue = captures[group.indices.path];
                if (!pathValue) {
                    pathValue = '';
                }
                location = new Location(bucketValue, pathValue);
                group.postModify(location);
                break;
            }
        }
        if (location == null) {
            throw invalidUrl(url);
        }
        return location;
    }
}

/**
 * A request whose promise always fails.
 */
class FailRequest {
    constructor(error) {
        this.promise_ = Promise.reject(error);
    }
    /** @inheritDoc */
    getPromise() {
        return this.promise_;
    }
    /** @inheritDoc */
    cancel(_appDelete = false) { }
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * @param f May be invoked
 *     before the function returns.
 * @param callback Get all the arguments passed to the function
 *     passed to f, including the initial boolean.
 */
function start(f, 
// eslint-disable-next-line @typescript-eslint/no-explicit-any
callback, timeout) {
    // TODO(andysoto): make this code cleaner (probably refactor into an actual
    // type instead of a bunch of functions with state shared in the closure)
    let waitSeconds = 1;
    // Would type this as "number" but that doesn't work for Node so ¯\_(ツ)_/¯
    // TODO: find a way to exclude Node type definition for storage because storage only works in browser
    // eslint-disable-next-line @typescript-eslint/no-explicit-any
    let timeoutId = null;
    let hitTimeout = false;
    let cancelState = 0;
    function canceled() {
        return cancelState === 2;
    }
    let triggeredCallback = false;
    function triggerCallback(...args) {
        if (!triggeredCallback) {
            triggeredCallback = true;
            callback.apply(null, args);
        }
    }
    function callWithDelay(millis) {
        timeoutId = setTimeout(() => {
            timeoutId = null;
            f(handler, canceled());
        }, millis);
    }
    function handler(success, ...args) {
        if (triggeredCallback) {
            return;
        }
        if (success) {
            triggerCallback.call(null, success, ...args);
            return;
        }
        const mustStop = canceled() || hitTimeout;
        if (mustStop) {
            triggerCallback.call(null, success, ...args);
            return;
        }
        if (waitSeconds < 64) {
            /* TODO(andysoto): don't back off so quickly if we know we're offline. */
            waitSeconds *= 2;
        }
        let waitMillis;
        if (cancelState === 1) {
            cancelState = 2;
            waitMillis = 0;
        }
        else {
            waitMillis = (waitSeconds + Math.random()) * 1000;
        }
        callWithDelay(waitMillis);
    }
    let stopped = false;
    function stop(wasTimeout) {
        if (stopped) {
            return;
        }
        stopped = true;
        if (triggeredCallback) {
            return;
        }
        if (timeoutId !== null) {
            if (!wasTimeout) {
                cancelState = 2;
            }
            clearTimeout(timeoutId);
            callWithDelay(0);
        }
        else {
            if (!wasTimeout) {
                cancelState = 1;
            }
        }
    }
    callWithDelay(0);
    setTimeout(() => {
        hitTimeout = true;
        stop(true);
    }, timeout);
    return stop;
}
/**
 * Stops the retry loop from repeating.
 * If the function is currently "in between" retries, it is invoked immediately
 * with the second parameter as "true". Otherwise, it will be invoked once more
 * after the current invocation finishes iff the current invocation would have
 * triggered another retry.
 */
function stop(id) {
    id(false);
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
function isJustDef(p) {
    return p !== void 0;
}
// eslint-disable-next-line @typescript-eslint/ban-types
function isFunction(p) {
    return typeof p === 'function';
}
function isNonArrayObject(p) {
    return typeof p === 'object' && !Array.isArray(p);
}
function isString(p) {
    return typeof p === 'string' || p instanceof String;
}
function isNativeBlob(p) {
    return isNativeBlobDefined() && p instanceof Blob;
}
function isNativeBlobDefined() {
    return typeof Blob !== 'undefined';
}
function validateNumber(argument, minValue, maxValue, value) {
    if (value < minValue) {
        throw invalidArgument(`Invalid value for '${argument}'. Expected ${minValue} or greater.`);
    }
    if (value > maxValue) {
        throw invalidArgument(`Invalid value for '${argument}'. Expected ${maxValue} or less.`);
    }
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
function makeUrl(urlPart, host) {
    const protocolMatch = host.match(/^(\w+):\/\/.+/);
    const protocol = protocolMatch === null || protocolMatch === void 0 ? void 0 : protocolMatch[1];
    let origin = host;
    if (protocol == null) {
        origin = `https://${host}`;
    }
    return `${origin}/v0${urlPart}`;
}
function makeQueryString(params) {
    const encode = encodeURIComponent;
    let queryPart = '?';
    for (const key in params) {
        if (params.hasOwnProperty(key)) {
            const nextPart = encode(key) + '=' + encode(params[key]);
            queryPart = queryPart + nextPart + '&';
        }
    }
    // Chop off the extra '&' or '?' on the end
    queryPart = queryPart.slice(0, -1);
    return queryPart;
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
class NetworkRequest {
    constructor(url, method, headers, body, successCodes, additionalRetryCodes, callback, errorCallback, timeout, progressCallback, pool) {
        this.pendingXhr_ = null;
        this.backoffId_ = null;
        this.canceled_ = false;
        this.appDelete_ = false;
        this.url_ = url;
        this.method_ = method;
        this.headers_ = headers;
        this.body_ = body;
        this.successCodes_ = successCodes.slice();
        this.additionalRetryCodes_ = additionalRetryCodes.slice();
        this.callback_ = callback;
        this.errorCallback_ = errorCallback;
        this.progressCallback_ = progressCallback;
        this.timeout_ = timeout;
        this.pool_ = pool;
        this.promise_ = new Promise((resolve, reject) => {
            this.resolve_ = resolve;
            this.reject_ = reject;
            this.start_();
        });
    }
    /**
     * Actually starts the retry loop.
     */
    start_() {
        const self = this;
        function doTheRequest(backoffCallback, canceled) {
            if (canceled) {
                backoffCallback(false, new RequestEndStatus(false, null, true));
                return;
            }
            const xhr = self.pool_.createXhrIo();
            self.pendingXhr_ = xhr;
            function progressListener(progressEvent) {
                const loaded = progressEvent.loaded;
                const total = progressEvent.lengthComputable ? progressEvent.total : -1;
                if (self.progressCallback_ !== null) {
                    self.progressCallback_(loaded, total);
                }
            }
            if (self.progressCallback_ !== null) {
                xhr.addUploadProgressListener(progressListener);
            }
            // eslint-disable-next-line @typescript-eslint/no-floating-promises
            xhr
                .send(self.url_, self.method_, self.body_, self.headers_)
                .then((xhr) => {
                if (self.progressCallback_ !== null) {
                    xhr.removeUploadProgressListener(progressListener);
                }
                self.pendingXhr_ = null;
                xhr = xhr;
                const hitServer = xhr.getErrorCode() === ErrorCode.NO_ERROR;
                const status = xhr.getStatus();
                if (!hitServer || self.isRetryStatusCode_(status)) {
                    const wasCanceled = xhr.getErrorCode() === ErrorCode.ABORT;
                    backoffCallback(false, new RequestEndStatus(false, null, wasCanceled));
                    return;
                }
                const successCode = self.successCodes_.indexOf(status) !== -1;
                backoffCallback(true, new RequestEndStatus(successCode, xhr));
            });
        }
        /**
         * @param requestWentThrough - True if the request eventually went
         *     through, false if it hit the retry limit or was canceled.
         */
        function backoffDone(requestWentThrough, status) {
            const resolve = self.resolve_;
            const reject = self.reject_;
            const xhr = status.xhr;
            if (status.wasSuccessCode) {
                try {
                    const result = self.callback_(xhr, xhr.getResponseText());
                    if (isJustDef(result)) {
                        resolve(result);
                    }
                    else {
                        resolve();
                    }
                }
                catch (e) {
                    reject(e);
                }
            }
            else {
                if (xhr !== null) {
                    const err = unknown();
                    err.serverResponse = xhr.getResponseText();
                    if (self.errorCallback_) {
                        reject(self.errorCallback_(xhr, err));
                    }
                    else {
                        reject(err);
                    }
                }
                else {
                    if (status.canceled) {
                        const err = self.appDelete_ ? appDeleted() : canceled();
                        reject(err);
                    }
                    else {
                        const err = retryLimitExceeded();
                        reject(err);
                    }
                }
            }
        }
        if (this.canceled_) {
            backoffDone(false, new RequestEndStatus(false, null, true));
        }
        else {
            this.backoffId_ = start(doTheRequest, backoffDone, this.timeout_);
        }
    }
    /** @inheritDoc */
    getPromise() {
        return this.promise_;
    }
    /** @inheritDoc */
    cancel(appDelete) {
        this.canceled_ = true;
        this.appDelete_ = appDelete || false;
        if (this.backoffId_ !== null) {
            stop(this.backoffId_);
        }
        if (this.pendingXhr_ !== null) {
            this.pendingXhr_.abort();
        }
    }
    isRetryStatusCode_(status) {
        // The codes for which to retry came from this page:
        // https://cloud.google.com/storage/docs/exponential-backoff
        const isFiveHundredCode = status >= 500 && status < 600;
        const extraRetryCodes = [
            // Request Timeout: web server didn't receive full request in time.
            408,
            // Too Many Requests: you're getting rate-limited, basically.
            429
        ];
        const isExtraRetryCode = extraRetryCodes.indexOf(status) !== -1;
        const isRequestSpecificRetryCode = this.additionalRetryCodes_.indexOf(status) !== -1;
        return isFiveHundredCode || isExtraRetryCode || isRequestSpecificRetryCode;
    }
}
/**
 * A collection of information about the result of a network request.
 * @param opt_canceled - Defaults to false.
 */
class RequestEndStatus {
    constructor(wasSuccessCode, xhr, canceled) {
        this.wasSuccessCode = wasSuccessCode;
        this.xhr = xhr;
        this.canceled = !!canceled;
    }
}
function addAuthHeader_(headers, authToken) {
    if (authToken !== null && authToken.length > 0) {
        headers['Authorization'] = 'Firebase ' + authToken;
    }
}
function addVersionHeader_(headers, firebaseVersion) {
    headers['X-Firebase-Storage-Version'] =
        'webjs/' + (firebaseVersion !== null && firebaseVersion !== void 0 ? firebaseVersion : 'AppManager');
}
function addGmpidHeader_(headers, appId) {
    if (appId) {
        headers['X-Firebase-GMPID'] = appId;
    }
}
function addAppCheckHeader_(headers, appCheckToken) {
    if (appCheckToken !== null) {
        headers['X-Firebase-AppCheck'] = appCheckToken;
    }
}
function makeRequest(requestInfo, appId, authToken, appCheckToken, pool, firebaseVersion) {
    const queryPart = makeQueryString(requestInfo.urlParams);
    const url = requestInfo.url + queryPart;
    const headers = Object.assign({}, requestInfo.headers);
    addGmpidHeader_(headers, appId);
    addAuthHeader_(headers, authToken);
    addVersionHeader_(headers, firebaseVersion);
    addAppCheckHeader_(headers, appCheckToken);
    return new NetworkRequest(url, requestInfo.method, headers, requestInfo.body, requestInfo.successCodes, requestInfo.additionalRetryCodes, requestInfo.handler, requestInfo.errorHandler, requestInfo.timeout, requestInfo.progressCallback, pool);
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
function getBlobBuilder() {
    if (typeof BlobBuilder !== 'undefined') {
        return BlobBuilder;
    }
    else if (typeof WebKitBlobBuilder !== 'undefined') {
        return WebKitBlobBuilder;
    }
    else {
        return undefined;
    }
}
/**
 * Concatenates one or more values together and converts them to a Blob.
 *
 * @param args The values that will make up the resulting blob.
 * @return The blob.
 */
function getBlob(...args) {
    const BlobBuilder = getBlobBuilder();
    if (BlobBuilder !== undefined) {
        const bb = new BlobBuilder();
        for (let i = 0; i < args.length; i++) {
            bb.append(args[i]);
        }
        return bb.getBlob();
    }
    else {
        if (isNativeBlobDefined()) {
            return new Blob(args);
        }
        else {
            throw new FirebaseStorageError("unsupported-environment" /* UNSUPPORTED_ENVIRONMENT */, "This browser doesn't seem to support creating Blobs");
        }
    }
}
/**
 * Slices the blob. The returned blob contains data from the start byte
 * (inclusive) till the end byte (exclusive). Negative indices cannot be used.
 *
 * @param blob The blob to be sliced.
 * @param start Index of the starting byte.
 * @param end Index of the ending byte.
 * @return The blob slice or null if not supported.
 */
function sliceBlob(blob, start, end) {
    if (blob.webkitSlice) {
        return blob.webkitSlice(start, end);
    }
    else if (blob.mozSlice) {
        return blob.mozSlice(start, end);
    }
    else if (blob.slice) {
        return blob.slice(start, end);
    }
    return null;
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * @param opt_elideCopy - If true, doesn't copy mutable input data
 *     (e.g. Uint8Arrays). Pass true only if you know the objects will not be
 *     modified after this blob's construction.
 *
 * @internal
 */
class FbsBlob {
    constructor(data, elideCopy) {
        let size = 0;
        let blobType = '';
        if (isNativeBlob(data)) {
            this.data_ = data;
            size = data.size;
            blobType = data.type;
        }
        else if (data instanceof ArrayBuffer) {
            if (elideCopy) {
                this.data_ = new Uint8Array(data);
            }
            else {
                this.data_ = new Uint8Array(data.byteLength);
                this.data_.set(new Uint8Array(data));
            }
            size = this.data_.length;
        }
        else if (data instanceof Uint8Array) {
            if (elideCopy) {
                this.data_ = data;
            }
            else {
                this.data_ = new Uint8Array(data.length);
                this.data_.set(data);
            }
            size = data.length;
        }
        this.size_ = size;
        this.type_ = blobType;
    }
    size() {
        return this.size_;
    }
    type() {
        return this.type_;
    }
    slice(startByte, endByte) {
        if (isNativeBlob(this.data_)) {
            const realBlob = this.data_;
            const sliced = sliceBlob(realBlob, startByte, endByte);
            if (sliced === null) {
                return null;
            }
            return new FbsBlob(sliced);
        }
        else {
            const slice = new Uint8Array(this.data_.buffer, startByte, endByte - startByte);
            return new FbsBlob(slice, true);
        }
    }
    static getBlob(...args) {
        if (isNativeBlobDefined()) {
            const blobby = args.map((val) => {
                if (val instanceof FbsBlob) {
                    return val.data_;
                }
                else {
                    return val;
                }
            });
            return new FbsBlob(getBlob.apply(null, blobby));
        }
        else {
            const uint8Arrays = args.map((val) => {
                if (isString(val)) {
                    return dataFromString(StringFormat.RAW, val).data;
                }
                else {
                    // Blobs don't exist, so this has to be a Uint8Array.
                    return val.data_;
                }
            });
            let finalLength = 0;
            uint8Arrays.forEach((array) => {
                finalLength += array.byteLength;
            });
            const merged = new Uint8Array(finalLength);
            let index = 0;
            uint8Arrays.forEach((array) => {
                for (let i = 0; i < array.length; i++) {
                    merged[index++] = array[i];
                }
            });
            return new FbsBlob(merged, true);
        }
    }
    uploadData() {
        return this.data_;
    }
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Returns the Object resulting from parsing the given JSON, or null if the
 * given string does not represent a JSON object.
 */
function jsonObjectOrNull(s) {
    let obj;
    try {
        obj = JSON.parse(s);
    }
    catch (e) {
        return null;
    }
    if (isNonArrayObject(obj)) {
        return obj;
    }
    else {
        return null;
    }
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * @fileoverview Contains helper methods for manipulating paths.
 */
/**
 * @return Null if the path is already at the root.
 */
function parent(path) {
    if (path.length === 0) {
        return null;
    }
    const index = path.lastIndexOf('/');
    if (index === -1) {
        return '';
    }
    const newPath = path.slice(0, index);
    return newPath;
}
function child(path, childPath) {
    const canonicalChildPath = childPath
        .split('/')
        .filter(component => component.length > 0)
        .join('/');
    if (path.length === 0) {
        return canonicalChildPath;
    }
    else {
        return path + '/' + canonicalChildPath;
    }
}
/**
 * Returns the last component of a path.
 * '/foo/bar' -> 'bar'
 * '/foo/bar/baz/' -> 'baz/'
 * '/a' -> 'a'
 */
function lastComponent(path) {
    const index = path.lastIndexOf('/', path.length - 2);
    if (index === -1) {
        return path;
    }
    else {
        return path.slice(index + 1);
    }
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
function noXform_(metadata, value) {
    return value;
}
class Mapping {
    constructor(server, local, writable, xform) {
        this.server = server;
        this.local = local || server;
        this.writable = !!writable;
        this.xform = xform || noXform_;
    }
}
let mappings_ = null;
function xformPath(fullPath) {
    if (!isString(fullPath) || fullPath.length < 2) {
        return fullPath;
    }
    else {
        return lastComponent(fullPath);
    }
}
function getMappings() {
    if (mappings_) {
        return mappings_;
    }
    const mappings = [];
    mappings.push(new Mapping('bucket'));
    mappings.push(new Mapping('generation'));
    mappings.push(new Mapping('metageneration'));
    mappings.push(new Mapping('name', 'fullPath', true));
    function mappingsXformPath(_metadata, fullPath) {
        return xformPath(fullPath);
    }
    const nameMapping = new Mapping('name');
    nameMapping.xform = mappingsXformPath;
    mappings.push(nameMapping);
    /**
     * Coerces the second param to a number, if it is defined.
     */
    function xformSize(_metadata, size) {
        if (size !== undefined) {
            return Number(size);
        }
        else {
            return size;
        }
    }
    const sizeMapping = new Mapping('size');
    sizeMapping.xform = xformSize;
    mappings.push(sizeMapping);
    mappings.push(new Mapping('timeCreated'));
    mappings.push(new Mapping('updated'));
    mappings.push(new Mapping('md5Hash', null, true));
    mappings.push(new Mapping('cacheControl', null, true));
    mappings.push(new Mapping('contentDisposition', null, true));
    mappings.push(new Mapping('contentEncoding', null, true));
    mappings.push(new Mapping('contentLanguage', null, true));
    mappings.push(new Mapping('contentType', null, true));
    mappings.push(new Mapping('metadata', 'customMetadata', true));
    mappings_ = mappings;
    return mappings_;
}
function addRef(metadata, service) {
    function generateRef() {
        const bucket = metadata['bucket'];
        const path = metadata['fullPath'];
        const loc = new Location(bucket, path);
        return service._makeStorageReference(loc);
    }
    Object.defineProperty(metadata, 'ref', { get: generateRef });
}
function fromResource(service, resource, mappings) {
    const metadata = {};
    metadata['type'] = 'file';
    const len = mappings.length;
    for (let i = 0; i < len; i++) {
        const mapping = mappings[i];
        metadata[mapping.local] = mapping.xform(metadata, resource[mapping.server]);
    }
    addRef(metadata, service);
    return metadata;
}
function fromResourceString(service, resourceString, mappings) {
    const obj = jsonObjectOrNull(resourceString);
    if (obj === null) {
        return null;
    }
    const resource = obj;
    return fromResource(service, resource, mappings);
}
function downloadUrlFromResourceString(metadata, resourceString, host) {
    const obj = jsonObjectOrNull(resourceString);
    if (obj === null) {
        return null;
    }
    if (!isString(obj['downloadTokens'])) {
        // This can happen if objects are uploaded through GCS and retrieved
        // through list, so we don't want to throw an Error.
        return null;
    }
    const tokens = obj['downloadTokens'];
    if (tokens.length === 0) {
        return null;
    }
    const encode = encodeURIComponent;
    const tokensList = tokens.split(',');
    const urls = tokensList.map((token) => {
        const bucket = metadata['bucket'];
        const path = metadata['fullPath'];
        const urlPart = '/b/' + encode(bucket) + '/o/' + encode(path);
        const base = makeUrl(urlPart, host);
        const queryString = makeQueryString({
            alt: 'media',
            token
        });
        return base + queryString;
    });
    return urls[0];
}
function toResourceString(metadata, mappings) {
    const resource = {};
    const len = mappings.length;
    for (let i = 0; i < len; i++) {
        const mapping = mappings[i];
        if (mapping.writable) {
            resource[mapping.server] = metadata[mapping.local];
        }
    }
    return JSON.stringify(resource);
}

/**
 * @license
 * Copyright 2019 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
const PREFIXES_KEY = 'prefixes';
const ITEMS_KEY = 'items';
function fromBackendResponse(service, bucket, resource) {
    const listResult = {
        prefixes: [],
        items: [],
        nextPageToken: resource['nextPageToken']
    };
    if (resource[PREFIXES_KEY]) {
        for (const path of resource[PREFIXES_KEY]) {
            const pathWithoutTrailingSlash = path.replace(/\/$/, '');
            const reference = service._makeStorageReference(new Location(bucket, pathWithoutTrailingSlash));
            listResult.prefixes.push(reference);
        }
    }
    if (resource[ITEMS_KEY]) {
        for (const item of resource[ITEMS_KEY]) {
            const reference = service._makeStorageReference(new Location(bucket, item['name']));
            listResult.items.push(reference);
        }
    }
    return listResult;
}
function fromResponseString(service, bucket, resourceString) {
    const obj = jsonObjectOrNull(resourceString);
    if (obj === null) {
        return null;
    }
    const resource = obj;
    return fromBackendResponse(service, bucket, resource);
}

class RequestInfo {
    constructor(url, method, 
    /**
     * Returns the value with which to resolve the request's promise. Only called
     * if the request is successful. Throw from this function to reject the
     * returned Request's promise with the thrown error.
     * Note: The XhrIo passed to this function may be reused after this callback
     * returns. Do not keep a reference to it in any way.
     */
    handler, timeout) {
        this.url = url;
        this.method = method;
        this.handler = handler;
        this.timeout = timeout;
        this.urlParams = {};
        this.headers = {};
        this.body = null;
        this.errorHandler = null;
        /**
         * Called with the current number of bytes uploaded and total size (-1 if not
         * computable) of the request body (i.e. used to report upload progress).
         */
        this.progressCallback = null;
        this.successCodes = [200];
        this.additionalRetryCodes = [];
    }
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Throws the UNKNOWN FirebaseStorageError if cndn is false.
 */
function handlerCheck(cndn) {
    if (!cndn) {
        throw unknown();
    }
}
function metadataHandler(service, mappings) {
    function handler(xhr, text) {
        const metadata = fromResourceString(service, text, mappings);
        handlerCheck(metadata !== null);
        return metadata;
    }
    return handler;
}
function listHandler(service, bucket) {
    function handler(xhr, text) {
        const listResult = fromResponseString(service, bucket, text);
        handlerCheck(listResult !== null);
        return listResult;
    }
    return handler;
}
function downloadUrlHandler(service, mappings) {
    function handler(xhr, text) {
        const metadata = fromResourceString(service, text, mappings);
        handlerCheck(metadata !== null);
        return downloadUrlFromResourceString(metadata, text, service.host);
    }
    return handler;
}
function sharedErrorHandler(location) {
    function errorHandler(xhr, err) {
        let newErr;
        if (xhr.getStatus() === 401) {
            if (
            // This exact message string is the only consistent part of the
            // server's error response that identifies it as an App Check error.
            xhr.getResponseText().includes('Firebase App Check token is invalid')) {
                newErr = unauthorizedApp();
            }
            else {
                newErr = unauthenticated();
            }
        }
        else {
            if (xhr.getStatus() === 402) {
                newErr = quotaExceeded(location.bucket);
            }
            else {
                if (xhr.getStatus() === 403) {
                    newErr = unauthorized(location.path);
                }
                else {
                    newErr = err;
                }
            }
        }
        newErr.serverResponse = err.serverResponse;
        return newErr;
    }
    return errorHandler;
}
function objectErrorHandler(location) {
    const shared = sharedErrorHandler(location);
    function errorHandler(xhr, err) {
        let newErr = shared(xhr, err);
        if (xhr.getStatus() === 404) {
            newErr = objectNotFound(location.path);
        }
        newErr.serverResponse = err.serverResponse;
        return newErr;
    }
    return errorHandler;
}
function getMetadata(service, location, mappings) {
    const urlPart = location.fullServerUrl();
    const url = makeUrl(urlPart, service.host);
    const method = 'GET';
    const timeout = service.maxOperationRetryTime;
    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
    requestInfo.errorHandler = objectErrorHandler(location);
    return requestInfo;
}
function list(service, location, delimiter, pageToken, maxResults) {
    const urlParams = {};
    if (location.isRoot) {
        urlParams['prefix'] = '';
    }
    else {
        urlParams['prefix'] = location.path + '/';
    }
    if (delimiter && delimiter.length > 0) {
        urlParams['delimiter'] = delimiter;
    }
    if (pageToken) {
        urlParams['pageToken'] = pageToken;
    }
    if (maxResults) {
        urlParams['maxResults'] = maxResults;
    }
    const urlPart = location.bucketOnlyServerUrl();
    const url = makeUrl(urlPart, service.host);
    const method = 'GET';
    const timeout = service.maxOperationRetryTime;
    const requestInfo = new RequestInfo(url, method, listHandler(service, location.bucket), timeout);
    requestInfo.urlParams = urlParams;
    requestInfo.errorHandler = sharedErrorHandler(location);
    return requestInfo;
}
function getDownloadUrl(service, location, mappings) {
    const urlPart = location.fullServerUrl();
    const url = makeUrl(urlPart, service.host);
    const method = 'GET';
    const timeout = service.maxOperationRetryTime;
    const requestInfo = new RequestInfo(url, method, downloadUrlHandler(service, mappings), timeout);
    requestInfo.errorHandler = objectErrorHandler(location);
    return requestInfo;
}
function updateMetadata(service, location, metadata, mappings) {
    const urlPart = location.fullServerUrl();
    const url = makeUrl(urlPart, service.host);
    const method = 'PATCH';
    const body = toResourceString(metadata, mappings);
    const headers = { 'Content-Type': 'application/json; charset=utf-8' };
    const timeout = service.maxOperationRetryTime;
    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
    requestInfo.headers = headers;
    requestInfo.body = body;
    requestInfo.errorHandler = objectErrorHandler(location);
    return requestInfo;
}
function deleteObject(service, location) {
    const urlPart = location.fullServerUrl();
    const url = makeUrl(urlPart, service.host);
    const method = 'DELETE';
    const timeout = service.maxOperationRetryTime;
    function handler(_xhr, _text) { }
    const requestInfo = new RequestInfo(url, method, handler, timeout);
    requestInfo.successCodes = [200, 204];
    requestInfo.errorHandler = objectErrorHandler(location);
    return requestInfo;
}
function determineContentType_(metadata, blob) {
    return ((metadata && metadata['contentType']) ||
        (blob && blob.type()) ||
        'application/octet-stream');
}
function metadataForUpload_(location, blob, metadata) {
    const metadataClone = Object.assign({}, metadata);
    metadataClone['fullPath'] = location.path;
    metadataClone['size'] = blob.size();
    if (!metadataClone['contentType']) {
        metadataClone['contentType'] = determineContentType_(null, blob);
    }
    return metadataClone;
}
/**
 * Prepare RequestInfo for uploads as Content-Type: multipart.
 */
function multipartUpload(service, location, mappings, blob, metadata) {
    const urlPart = location.bucketOnlyServerUrl();
    const headers = {
        'X-Goog-Upload-Protocol': 'multipart'
    };
    function genBoundary() {
        let str = '';
        for (let i = 0; i < 2; i++) {
            str = str + Math.random().toString().slice(2);
        }
        return str;
    }
    const boundary = genBoundary();
    headers['Content-Type'] = 'multipart/related; boundary=' + boundary;
    const metadata_ = metadataForUpload_(location, blob, metadata);
    const metadataString = toResourceString(metadata_, mappings);
    const preBlobPart = '--' +
        boundary +
        '\r\n' +
        'Content-Type: application/json; charset=utf-8\r\n\r\n' +
        metadataString +
        '\r\n--' +
        boundary +
        '\r\n' +
        'Content-Type: ' +
        metadata_['contentType'] +
        '\r\n\r\n';
    const postBlobPart = '\r\n--' + boundary + '--';
    const body = FbsBlob.getBlob(preBlobPart, blob, postBlobPart);
    if (body === null) {
        throw cannotSliceBlob();
    }
    const urlParams = { name: metadata_['fullPath'] };
    const url = makeUrl(urlPart, service.host);
    const method = 'POST';
    const timeout = service.maxUploadRetryTime;
    const requestInfo = new RequestInfo(url, method, metadataHandler(service, mappings), timeout);
    requestInfo.urlParams = urlParams;
    requestInfo.headers = headers;
    requestInfo.body = body.uploadData();
    requestInfo.errorHandler = sharedErrorHandler(location);
    return requestInfo;
}
/**
 * @param current The number of bytes that have been uploaded so far.
 * @param total The total number of bytes in the upload.
 * @param opt_finalized True if the server has finished the upload.
 * @param opt_metadata The upload metadata, should
 *     only be passed if opt_finalized is true.
 */
class ResumableUploadStatus {
    constructor(current, total, finalized, metadata) {
        this.current = current;
        this.total = total;
        this.finalized = !!finalized;
        this.metadata = metadata || null;
    }
}
function checkResumeHeader_(xhr, allowed) {
    let status = null;
    try {
        status = xhr.getResponseHeader('X-Goog-Upload-Status');
    }
    catch (e) {
        handlerCheck(false);
    }
    const allowedStatus = allowed || ['active'];
    handlerCheck(!!status && allowedStatus.indexOf(status) !== -1);
    return status;
}
function createResumableUpload(service, location, mappings, blob, metadata) {
    const urlPart = location.bucketOnlyServerUrl();
    const metadataForUpload = metadataForUpload_(location, blob, metadata);
    const urlParams = { name: metadataForUpload['fullPath'] };
    const url = makeUrl(urlPart, service.host);
    const method = 'POST';
    const headers = {
        'X-Goog-Upload-Protocol': 'resumable',
        'X-Goog-Upload-Command': 'start',
        'X-Goog-Upload-Header-Content-Length': blob.size(),
        'X-Goog-Upload-Header-Content-Type': metadataForUpload['contentType'],
        'Content-Type': 'application/json; charset=utf-8'
    };
    const body = toResourceString(metadataForUpload, mappings);
    const timeout = service.maxUploadRetryTime;
    function handler(xhr) {
        checkResumeHeader_(xhr);
        let url;
        try {
            url = xhr.getResponseHeader('X-Goog-Upload-URL');
        }
        catch (e) {
            handlerCheck(false);
        }
        handlerCheck(isString(url));
        return url;
    }
    const requestInfo = new RequestInfo(url, method, handler, timeout);
    requestInfo.urlParams = urlParams;
    requestInfo.headers = headers;
    requestInfo.body = body;
    requestInfo.errorHandler = sharedErrorHandler(location);
    return requestInfo;
}
/**
 * @param url From a call to fbs.requests.createResumableUpload.
 */
function getResumableUploadStatus(service, location, url, blob) {
    const headers = { 'X-Goog-Upload-Command': 'query' };
    function handler(xhr) {
        const status = checkResumeHeader_(xhr, ['active', 'final']);
        let sizeString = null;
        try {
            sizeString = xhr.getResponseHeader('X-Goog-Upload-Size-Received');
        }
        catch (e) {
            handlerCheck(false);
        }
        if (!sizeString) {
            // null or empty string
            handlerCheck(false);
        }
        const size = Number(sizeString);
        handlerCheck(!isNaN(size));
        return new ResumableUploadStatus(size, blob.size(), status === 'final');
    }
    const method = 'POST';
    const timeout = service.maxUploadRetryTime;
    const requestInfo = new RequestInfo(url, method, handler, timeout);
    requestInfo.headers = headers;
    requestInfo.errorHandler = sharedErrorHandler(location);
    return requestInfo;
}
/**
 * Any uploads via the resumable upload API must transfer a number of bytes
 * that is a multiple of this number.
 */
const RESUMABLE_UPLOAD_CHUNK_SIZE = 256 * 1024;
/**
 * @param url From a call to fbs.requests.createResumableUpload.
 * @param chunkSize Number of bytes to upload.
 * @param status The previous status.
 *     If not passed or null, we start from the beginning.
 * @throws fbs.Error If the upload is already complete, the passed in status
 *     has a final size inconsistent with the blob, or the blob cannot be sliced
 *     for upload.
 */
function continueResumableUpload(location, service, url, blob, chunkSize, mappings, status, progressCallback) {
    // TODO(andysoto): standardize on internal asserts
    // assert(!(opt_status && opt_status.finalized));
    const status_ = new ResumableUploadStatus(0, 0);
    if (status) {
        status_.current = status.current;
        status_.total = status.total;
    }
    else {
        status_.current = 0;
        status_.total = blob.size();
    }
    if (blob.size() !== status_.total) {
        throw serverFileWrongSize();
    }
    const bytesLeft = status_.total - status_.current;
    let bytesToUpload = bytesLeft;
    if (chunkSize > 0) {
        bytesToUpload = Math.min(bytesToUpload, chunkSize);
    }
    const startByte = status_.current;
    const endByte = startByte + bytesToUpload;
    const uploadCommand = bytesToUpload === bytesLeft ? 'upload, finalize' : 'upload';
    const headers = {
        'X-Goog-Upload-Command': uploadCommand,
        'X-Goog-Upload-Offset': status_.current
    };
    const body = blob.slice(startByte, endByte);
    if (body === null) {
        throw cannotSliceBlob();
    }
    function handler(xhr, text) {
        // TODO(andysoto): Verify the MD5 of each uploaded range:
        // the 'x-range-md5' header comes back with status code 308 responses.
        // We'll only be able to bail out though, because you can't re-upload a
        // range that you previously uploaded.
        const uploadStatus = checkResumeHeader_(xhr, ['active', 'final']);
        const newCurrent = status_.current + bytesToUpload;
        const size = blob.size();
        let metadata;
        if (uploadStatus === 'final') {
            metadata = metadataHandler(service, mappings)(xhr, text);
        }
        else {
            metadata = null;
        }
        return new ResumableUploadStatus(newCurrent, size, uploadStatus === 'final', metadata);
    }
    const method = 'POST';
    const timeout = service.maxUploadRetryTime;
    const requestInfo = new RequestInfo(url, method, handler, timeout);
    requestInfo.headers = headers;
    requestInfo.body = body.uploadData();
    requestInfo.progressCallback = progressCallback || null;
    requestInfo.errorHandler = sharedErrorHandler(location);
    return requestInfo;
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
class Observer {
    constructor(nextOrObserver, error, complete) {
        const asFunctions = isFunction(nextOrObserver) || error != null || complete != null;
        if (asFunctions) {
            this.next = nextOrObserver;
            this.error = error;
            this.complete = complete;
        }
        else {
            const observer = nextOrObserver;
            this.next = observer.next;
            this.error = observer.error;
            this.complete = observer.complete;
        }
    }
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Returns a function that invokes f with its arguments asynchronously as a
 * microtask, i.e. as soon as possible after the current script returns back
 * into browser code.
 */
// eslint-disable-next-line @typescript-eslint/ban-types
function async(f) {
    return (...argsToForward) => {
        // eslint-disable-next-line @typescript-eslint/no-floating-promises
        Promise.resolve().then(() => f(...argsToForward));
    };
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Represents a blob being uploaded. Can be used to pause/resume/cancel the
 * upload and manage callbacks for various events.
 * @internal
 */
class UploadTask {
    /**
     * @param ref - The firebaseStorage.Reference object this task came
     *     from, untyped to avoid cyclic dependencies.
     * @param blob - The blob to upload.
     */
    constructor(ref, blob, metadata = null) {
        /**
         * Number of bytes transferred so far.
         */
        this._transferred = 0;
        this._needToFetchStatus = false;
        this._needToFetchMetadata = false;
        this._observers = [];
        this._error = undefined;
        this._uploadUrl = undefined;
        this._request = undefined;
        this._chunkMultiplier = 1;
        this._resolve = undefined;
        this._reject = undefined;
        this._ref = ref;
        this._blob = blob;
        this._metadata = metadata;
        this._mappings = getMappings();
        this._resumable = this._shouldDoResumable(this._blob);
        this._state = "running" /* RUNNING */;
        this._errorHandler = error => {
            this._request = undefined;
            this._chunkMultiplier = 1;
            if (error._codeEquals("canceled" /* CANCELED */)) {
                this._needToFetchStatus = true;
                this.completeTransitions_();
            }
            else {
                this._error = error;
                this._transition("error" /* ERROR */);
            }
        };
        this._metadataErrorHandler = error => {
            this._request = undefined;
            if (error._codeEquals("canceled" /* CANCELED */)) {
                this.completeTransitions_();
            }
            else {
                this._error = error;
                this._transition("error" /* ERROR */);
            }
        };
        this._promise = new Promise((resolve, reject) => {
            this._resolve = resolve;
            this._reject = reject;
            this._start();
        });
        // Prevent uncaught rejections on the internal promise from bubbling out
        // to the top level with a dummy handler.
        this._promise.then(null, () => { });
    }
    _makeProgressCallback() {
        const sizeBefore = this._transferred;
        return loaded => this._updateProgress(sizeBefore + loaded);
    }
    _shouldDoResumable(blob) {
        return blob.size() > 256 * 1024;
    }
    _start() {
        if (this._state !== "running" /* RUNNING */) {
            // This can happen if someone pauses us in a resume callback, for example.
            return;
        }
        if (this._request !== undefined) {
            return;
        }
        if (this._resumable) {
            if (this._uploadUrl === undefined) {
                this._createResumable();
            }
            else {
                if (this._needToFetchStatus) {
                    this._fetchStatus();
                }
                else {
                    if (this._needToFetchMetadata) {
                        // Happens if we miss the metadata on upload completion.
                        this._fetchMetadata();
                    }
                    else {
                        this._continueUpload();
                    }
                }
            }
        }
        else {
            this._oneShotUpload();
        }
    }
    _resolveToken(callback) {
        // eslint-disable-next-line @typescript-eslint/no-floating-promises
        Promise.all([
            this._ref.storage._getAuthToken(),
            this._ref.storage._getAppCheckToken()
        ]).then(([authToken, appCheckToken]) => {
            switch (this._state) {
                case "running" /* RUNNING */:
                    callback(authToken, appCheckToken);
                    break;
                case "canceling" /* CANCELING */:
                    this._transition("canceled" /* CANCELED */);
                    break;
                case "pausing" /* PAUSING */:
                    this._transition("paused" /* PAUSED */);
                    break;
            }
        });
    }
    // TODO(andysoto): assert false
    _createResumable() {
        this._resolveToken((authToken, appCheckToken) => {
            const requestInfo = createResumableUpload(this._ref.storage, this._ref._location, this._mappings, this._blob, this._metadata);
            const createRequest = this._ref.storage._makeRequest(requestInfo, authToken, appCheckToken);
            this._request = createRequest;
            createRequest.getPromise().then((url) => {
                this._request = undefined;
                this._uploadUrl = url;
                this._needToFetchStatus = false;
                this.completeTransitions_();
            }, this._errorHandler);
        });
    }
    _fetchStatus() {
        // TODO(andysoto): assert(this.uploadUrl_ !== null);
        const url = this._uploadUrl;
        this._resolveToken((authToken, appCheckToken) => {
            const requestInfo = getResumableUploadStatus(this._ref.storage, this._ref._location, url, this._blob);
            const statusRequest = this._ref.storage._makeRequest(requestInfo, authToken, appCheckToken);
            this._request = statusRequest;
            statusRequest.getPromise().then(status => {
                status = status;
                this._request = undefined;
                this._updateProgress(status.current);
                this._needToFetchStatus = false;
                if (status.finalized) {
                    this._needToFetchMetadata = true;
                }
                this.completeTransitions_();
            }, this._errorHandler);
        });
    }
    _continueUpload() {
        const chunkSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;
        const status = new ResumableUploadStatus(this._transferred, this._blob.size());
        // TODO(andysoto): assert(this.uploadUrl_ !== null);
        const url = this._uploadUrl;
        this._resolveToken((authToken, appCheckToken) => {
            let requestInfo;
            try {
                requestInfo = continueResumableUpload(this._ref._location, this._ref.storage, url, this._blob, chunkSize, this._mappings, status, this._makeProgressCallback());
            }
            catch (e) {
                this._error = e;
                this._transition("error" /* ERROR */);
                return;
            }
            const uploadRequest = this._ref.storage._makeRequest(requestInfo, authToken, appCheckToken);
            this._request = uploadRequest;
            uploadRequest.getPromise().then((newStatus) => {
                this._increaseMultiplier();
                this._request = undefined;
                this._updateProgress(newStatus.current);
                if (newStatus.finalized) {
                    this._metadata = newStatus.metadata;
                    this._transition("success" /* SUCCESS */);
                }
                else {
                    this.completeTransitions_();
                }
            }, this._errorHandler);
        });
    }
    _increaseMultiplier() {
        const currentSize = RESUMABLE_UPLOAD_CHUNK_SIZE * this._chunkMultiplier;
        // Max chunk size is 32M.
        if (currentSize < 32 * 1024 * 1024) {
            this._chunkMultiplier *= 2;
        }
    }
    _fetchMetadata() {
        this._resolveToken((authToken, appCheckToken) => {
            const requestInfo = getMetadata(this._ref.storage, this._ref._location, this._mappings);
            const metadataRequest = this._ref.storage._makeRequest(requestInfo, authToken, appCheckToken);
            this._request = metadataRequest;
            metadataRequest.getPromise().then(metadata => {
                this._request = undefined;
                this._metadata = metadata;
                this._transition("success" /* SUCCESS */);
            }, this._metadataErrorHandler);
        });
    }
    _oneShotUpload() {
        this._resolveToken((authToken, appCheckToken) => {
            const requestInfo = multipartUpload(this._ref.storage, this._ref._location, this._mappings, this._blob, this._metadata);
            const multipartRequest = this._ref.storage._makeRequest(requestInfo, authToken, appCheckToken);
            this._request = multipartRequest;
            multipartRequest.getPromise().then(metadata => {
                this._request = undefined;
                this._metadata = metadata;
                this._updateProgress(this._blob.size());
                this._transition("success" /* SUCCESS */);
            }, this._errorHandler);
        });
    }
    _updateProgress(transferred) {
        const old = this._transferred;
        this._transferred = transferred;
        // A progress update can make the "transferred" value smaller (e.g. a
        // partial upload not completed by server, after which the "transferred"
        // value may reset to the value at the beginning of the request).
        if (this._transferred !== old) {
            this._notifyObservers();
        }
    }
    _transition(state) {
        if (this._state === state) {
            return;
        }
        switch (state) {
            case "canceling" /* CANCELING */:
                // TODO(andysoto):
                // assert(this.state_ === InternalTaskState.RUNNING ||
                //        this.state_ === InternalTaskState.PAUSING);
                this._state = state;
                if (this._request !== undefined) {
                    this._request.cancel();
                }
                break;
            case "pausing" /* PAUSING */:
                // TODO(andysoto):
                // assert(this.state_ === InternalTaskState.RUNNING);
                this._state = state;
                if (this._request !== undefined) {
                    this._request.cancel();
                }
                break;
            case "running" /* RUNNING */:
                // TODO(andysoto):
                // assert(this.state_ === InternalTaskState.PAUSED ||
                //        this.state_ === InternalTaskState.PAUSING);
                const wasPaused = this._state === "paused" /* PAUSED */;
                this._state = state;
                if (wasPaused) {
                    this._notifyObservers();
                    this._start();
                }
                break;
            case "paused" /* PAUSED */:
                // TODO(andysoto):
                // assert(this.state_ === InternalTaskState.PAUSING);
                this._state = state;
                this._notifyObservers();
                break;
            case "canceled" /* CANCELED */:
                // TODO(andysoto):
                // assert(this.state_ === InternalTaskState.PAUSED ||
                //        this.state_ === InternalTaskState.CANCELING);
                this._error = canceled();
                this._state = state;
                this._notifyObservers();
                break;
            case "error" /* ERROR */:
                // TODO(andysoto):
                // assert(this.state_ === InternalTaskState.RUNNING ||
                //        this.state_ === InternalTaskState.PAUSING ||
                //        this.state_ === InternalTaskState.CANCELING);
                this._state = state;
                this._notifyObservers();
                break;
            case "success" /* SUCCESS */:
                // TODO(andysoto):
                // assert(this.state_ === InternalTaskState.RUNNING ||
                //        this.state_ === InternalTaskState.PAUSING ||
                //        this.state_ === InternalTaskState.CANCELING);
                this._state = state;
                this._notifyObservers();
                break;
        }
    }
    completeTransitions_() {
        switch (this._state) {
            case "pausing" /* PAUSING */:
                this._transition("paused" /* PAUSED */);
                break;
            case "canceling" /* CANCELING */:
                this._transition("canceled" /* CANCELED */);
                break;
            case "running" /* RUNNING */:
                this._start();
                break;
        }
    }
    /**
     * A snapshot of the current task state.
     */
    get snapshot() {
        const externalState = taskStateFromInternalTaskState(this._state);
        return {
            bytesTransferred: this._transferred,
            totalBytes: this._blob.size(),
            state: externalState,
            metadata: this._metadata,
            task: this,
            ref: this._ref
        };
    }
    /**
     * Adds a callback for an event.
     * @param type - The type of event to listen for.
     * @param nextOrObserver -
     *     The `next` function, which gets called for each item in
     *     the event stream, or an observer object with some or all of these three
     *     properties (`next`, `error`, `complete`).
     * @param error - A function that gets called with a `FirebaseStorageError`
     *     if the event stream ends due to an error.
     * @param completed - A function that gets called if the
     *     event stream ends normally.
     * @returns
     *     If only the event argument is passed, returns a function you can use to
     *     add callbacks (see the examples above). If more than just the event
     *     argument is passed, returns a function you can call to unregister the
     *     callbacks.
     */
    on(type, nextOrObserver, error, completed) {
        const observer = new Observer(nextOrObserver, error, completed);
        this._addObserver(observer);
        return () => {
            this._removeObserver(observer);
        };
    }
    /**
     * This object behaves like a Promise, and resolves with its snapshot data
     * when the upload completes.
     * @param onFulfilled - The fulfillment callback. Promise chaining works as normal.
     * @param onRejected - The rejection callback.
     */
    then(onFulfilled, onRejected) {
        // These casts are needed so that TypeScript can infer the types of the
        // resulting Promise.
        return this._promise.then(onFulfilled, onRejected);
    }
    /**
     * Equivalent to calling `then(null, onRejected)`.
     */
    catch(onRejected) {
        return this.then(null, onRejected);
    }
    /**
     * Adds the given observer.
     */
    _addObserver(observer) {
        this._observers.push(observer);
        this._notifyObserver(observer);
    }
    /**
     * Removes the given observer.
     */
    _removeObserver(observer) {
        const i = this._observers.indexOf(observer);
        if (i !== -1) {
            this._observers.splice(i, 1);
        }
    }
    _notifyObservers() {
        this._finishPromise();
        const observers = this._observers.slice();
        observers.forEach(observer => {
            this._notifyObserver(observer);
        });
    }
    _finishPromise() {
        if (this._resolve !== undefined) {
            let triggered = true;
            switch (taskStateFromInternalTaskState(this._state)) {
                case TaskState.SUCCESS:
                    async(this._resolve.bind(null, this.snapshot))();
                    break;
                case TaskState.CANCELED:
                case TaskState.ERROR:
                    const toCall = this._reject;
                    async(toCall.bind(null, this._error))();
                    break;
                default:
                    triggered = false;
                    break;
            }
            if (triggered) {
                this._resolve = undefined;
                this._reject = undefined;
            }
        }
    }
    _notifyObserver(observer) {
        const externalState = taskStateFromInternalTaskState(this._state);
        switch (externalState) {
            case TaskState.RUNNING:
            case TaskState.PAUSED:
                if (observer.next) {
                    async(observer.next.bind(observer, this.snapshot))();
                }
                break;
            case TaskState.SUCCESS:
                if (observer.complete) {
                    async(observer.complete.bind(observer))();
                }
                break;
            case TaskState.CANCELED:
            case TaskState.ERROR:
                if (observer.error) {
                    async(observer.error.bind(observer, this._error))();
                }
                break;
            default:
                // TODO(andysoto): assert(false);
                if (observer.error) {
                    async(observer.error.bind(observer, this._error))();
                }
        }
    }
    /**
     * Resumes a paused task. Has no effect on a currently running or failed task.
     * @returns True if the operation took effect, false if ignored.
     */
    resume() {
        const valid = this._state === "paused" /* PAUSED */ ||
            this._state === "pausing" /* PAUSING */;
        if (valid) {
            this._transition("running" /* RUNNING */);
        }
        return valid;
    }
    /**
     * Pauses a currently running task. Has no effect on a paused or failed task.
     * @returns True if the operation took effect, false if ignored.
     */
    pause() {
        const valid = this._state === "running" /* RUNNING */;
        if (valid) {
            this._transition("pausing" /* PAUSING */);
        }
        return valid;
    }
    /**
     * Cancels a currently running or paused task. Has no effect on a complete or
     * failed task.
     * @returns True if the operation took effect, false if ignored.
     */
    cancel() {
        const valid = this._state === "running" /* RUNNING */ ||
            this._state === "pausing" /* PAUSING */;
        if (valid) {
            this._transition("canceling" /* CANCELING */);
        }
        return valid;
    }
}

/**
 * @license
 * Copyright 2019 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Provides methods to interact with a bucket in the Firebase Storage service.
 * @internal
 * @param _location - An fbs.location, or the URL at
 *     which to base this object, in one of the following forms:
 *         gs://<bucket>/<object-path>
 *         http[s]://firebasestorage.googleapis.com/
 *                     <api-version>/b/<bucket>/o/<object-path>
 *     Any query or fragment strings will be ignored in the http[s]
 *     format. If no value is passed, the storage object will use a URL based on
 *     the project ID of the base firebase.App instance.
 */
class Reference {
    constructor(_service, location) {
        this._service = _service;
        if (location instanceof Location) {
            this._location = location;
        }
        else {
            this._location = Location.makeFromUrl(location, _service.host);
        }
    }
    /**
     * Returns the URL for the bucket and path this object references,
     *     in the form gs://<bucket>/<object-path>
     * @override
     */
    toString() {
        return 'gs://' + this._location.bucket + '/' + this._location.path;
    }
    _newRef(service, location) {
        return new Reference(service, location);
    }
    /**
     * A reference to the root of this object's bucket.
     */
    get root() {
        const location = new Location(this._location.bucket, '');
        return this._newRef(this._service, location);
    }
    /**
     * The name of the bucket containing this reference's object.
     */
    get bucket() {
        return this._location.bucket;
    }
    /**
     * The full path of this object.
     */
    get fullPath() {
        return this._location.path;
    }
    /**
     * The short name of this object, which is the last component of the full path.
     * For example, if fullPath is 'full/path/image.png', name is 'image.png'.
     */
    get name() {
        return lastComponent(this._location.path);
    }
    /**
     * The `StorageService` instance this `StorageReference` is associated with.
     */
    get storage() {
        return this._service;
    }
    /**
     * A `StorageReference` pointing to the parent location of this `StorageReference`, or null if
     * this reference is the root.
     */
    get parent() {
        const newPath = parent(this._location.path);
        if (newPath === null) {
            return null;
        }
        const location = new Location(this._location.bucket, newPath);
        return new Reference(this._service, location);
    }
    /**
     * Utility function to throw an error in methods that do not accept a root reference.
     */
    _throwIfRoot(name) {
        if (this._location.path === '') {
            throw invalidRootOperation(name);
        }
    }
}
/**
 * Uploads data to this object's location.
 * The upload can be paused and resumed, and exposes progress updates.
 * @public
 * @param ref - StorageReference where data should be uploaded.
 * @param data - The data to upload.
 * @param metadata - Metadata for the newly uploaded data.
 * @returns An UploadTask
 */
function uploadBytesResumable(ref, data, metadata) {
    ref._throwIfRoot('uploadBytesResumable');
    return new UploadTask(ref, new FbsBlob(data), metadata);
}
/**
 * List all items (files) and prefixes (folders) under this storage reference.
 *
 * This is a helper method for calling list() repeatedly until there are
 * no more results. The default pagination size is 1000.
 *
 * Note: The results may not be consistent if objects are changed while this
 * operation is running.
 *
 * Warning: listAll may potentially consume too many resources if there are
 * too many results.
 * @public
 * @param ref - StorageReference to get list from.
 *
 * @returns A Promise that resolves with all the items and prefixes under
 *      the current storage reference. `prefixes` contains references to
 *      sub-directories and `items` contains references to objects in this
 *      folder. `nextPageToken` is never returned.
 */
function listAll(ref) {
    const accumulator = {
        prefixes: [],
        items: []
    };
    return listAllHelper(ref, accumulator).then(() => accumulator);
}
/**
 * Separated from listAll because async functions can't use "arguments".
 * @param ref
 * @param accumulator
 * @param pageToken
 */
async function listAllHelper(ref, accumulator, pageToken) {
    const opt = {
        // maxResults is 1000 by default.
        pageToken
    };
    const nextPage = await list$1(ref, opt);
    accumulator.prefixes.push(...nextPage.prefixes);
    accumulator.items.push(...nextPage.items);
    if (nextPage.nextPageToken != null) {
        await listAllHelper(ref, accumulator, nextPage.nextPageToken);
    }
}
/**
 * List items (files) and prefixes (folders) under this storage reference.
 *
 * List API is only available for Firebase Rules Version 2.
 *
 * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
 * delimited folder structure.
 * Refer to GCS's List API if you want to learn more.
 *
 * To adhere to Firebase Rules's Semantics, Firebase Storage does not
 * support objects whose paths end with "/" or contain two consecutive
 * "/"s. Firebase Storage List API will filter these unsupported objects.
 * list() may fail if there are too many unsupported objects in the bucket.
 * @public
 *
 * @param ref - StorageReference to get list from.
 * @param options - See ListOptions for details.
 * @returns A Promise that resolves with the items and prefixes.
 *      `prefixes` contains references to sub-folders and `items`
 *      contains references to objects in this folder. `nextPageToken`
 *      can be used to get the rest of the results.
 */
async function list$1(ref, options) {
    if (options != null) {
        if (typeof options.maxResults === 'number') {
            validateNumber('options.maxResults', 
            /* minValue= */ 1, 
            /* maxValue= */ 1000, options.maxResults);
        }
    }
    const op = options || {};
    const requestInfo = list(ref.storage, ref._location, 
    /*delimiter= */ '/', op.pageToken, op.maxResults);
    return (await ref.storage.makeRequestWithTokens(requestInfo)).getPromise();
}
/**
 * A promise that resolves with the metadata for this object. If this
 * object doesn't exist or metadata cannot be retreived, the promise is
 * rejected.
 * @public
 * @param ref - StorageReference to get metadata from.
 */
async function getMetadata$1(ref) {
    ref._throwIfRoot('getMetadata');
    const requestInfo = getMetadata(ref.storage, ref._location, getMappings());
    return (await ref.storage.makeRequestWithTokens(requestInfo)).getPromise();
}
/**
 * Updates the metadata for this object.
 * @public
 * @param ref - StorageReference to update metadata for.
 * @param metadata - The new metadata for the object.
 *     Only values that have been explicitly set will be changed. Explicitly
 *     setting a value to null will remove the metadata.
 * @returns A promise that resolves
 *     with the new metadata for this object.
 *     See `firebaseStorage.Reference.prototype.getMetadata`
 */
async function updateMetadata$1(ref, metadata) {
    ref._throwIfRoot('updateMetadata');
    const requestInfo = updateMetadata(ref.storage, ref._location, metadata, getMappings());
    return (await ref.storage.makeRequestWithTokens(requestInfo)).getPromise();
}
/**
 * Returns the download URL for the given Reference.
 * @public
 * @returns A promise that resolves with the download
 *     URL for this object.
 */
async function getDownloadURL(ref) {
    ref._throwIfRoot('getDownloadURL');
    const requestInfo = getDownloadUrl(ref.storage, ref._location, getMappings());
    return (await ref.storage.makeRequestWithTokens(requestInfo))
        .getPromise()
        .then(url => {
        if (url === null) {
            throw noDownloadURL();
        }
        return url;
    });
}
/**
 * Deletes the object at this location.
 * @public
 * @param ref - StorageReference for object to delete.
 * @returns A promise that resolves if the deletion succeeds.
 */
async function deleteObject$1(ref) {
    ref._throwIfRoot('deleteObject');
    const requestInfo = deleteObject(ref.storage, ref._location);
    return (await ref.storage.makeRequestWithTokens(requestInfo)).getPromise();
}
/**
 * Returns reference for object obtained by appending `childPath` to `ref`.
 *
 * @param ref - StorageReference to get child of.
 * @param childPath - Child path from provided ref.
 * @returns A reference to the object obtained by
 * appending childPath, removing any duplicate, beginning, or trailing
 * slashes.
 *
 */
function _getChild(ref, childPath) {
    const newPath = child(ref._location.path, childPath);
    const location = new Location(ref._location.bucket, newPath);
    return new Reference(ref.storage, location);
}

/**
 * @license
 * Copyright 2017 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
function isUrl(path) {
    return /^[A-Za-z]+:\/\//.test(path);
}
/**
 * Returns a firebaseStorage.Reference for the given url.
 */
function refFromURL(service, url) {
    return new Reference(service, url);
}
/**
 * Returns a firebaseStorage.Reference for the given path in the default
 * bucket.
 */
function refFromPath(ref, path) {
    if (ref instanceof StorageService) {
        const service = ref;
        if (service._bucket == null) {
            throw noDefaultBucket();
        }
        const reference = new Reference(service, service._bucket);
        if (path != null) {
            return refFromPath(reference, path);
        }
        else {
            return reference;
        }
    }
    else {
        // ref is a Reference
        if (path !== undefined) {
            if (path.includes('..')) {
                throw invalidArgument('`path` param cannot contain ".."');
            }
            return _getChild(ref, path);
        }
        else {
            return ref;
        }
    }
}
function ref(serviceOrRef, pathOrUrl) {
    if (pathOrUrl && isUrl(pathOrUrl)) {
        if (serviceOrRef instanceof StorageService) {
            return refFromURL(serviceOrRef, pathOrUrl);
        }
        else {
            throw invalidArgument('To use ref(service, url), the first argument must be a Storage instance.');
        }
    }
    else {
        return refFromPath(serviceOrRef, pathOrUrl);
    }
}
function extractBucket(host, config) {
    const bucketString = config === null || config === void 0 ? void 0 : config[CONFIG_STORAGE_BUCKET_KEY];
    if (bucketString == null) {
        return null;
    }
    return Location.makeFromBucketSpec(bucketString, host);
}
function useStorageEmulator(storage, host, port) {
    storage.host = `http://${host}:${port}`;
}
/**
 * A service that provides Firebase Storage Reference instances.
 * @public
 * @param opt_url - gs:// url to a custom Storage Bucket
 */
class StorageService {
    constructor(
    /**
     * FirebaseApp associated with this StorageService instance.
     */
    app, _authProvider, 
    /**
     * @internal
     */
    _appCheckProvider, 
    /**
     * @internal
     */
    _pool, _url, _firebaseVersion) {
        this.app = app;
        this._authProvider = _authProvider;
        this._appCheckProvider = _appCheckProvider;
        this._pool = _pool;
        this._url = _url;
        this._firebaseVersion = _firebaseVersion;
        this._bucket = null;
        /**
         * This string can be in the formats:
         * - host
         * - host:port
         * - protocol://host:port
         */
        this._host = DEFAULT_HOST;
        this._appId = null;
        this._deleted = false;
        this._maxOperationRetryTime = DEFAULT_MAX_OPERATION_RETRY_TIME;
        this._maxUploadRetryTime = DEFAULT_MAX_UPLOAD_RETRY_TIME;
        this._requests = new Set();
        if (_url != null) {
            this._bucket = Location.makeFromBucketSpec(_url, this._host);
        }
        else {
            this._bucket = extractBucket(this._host, this.app.options);
        }
    }
    get host() {
        return this._host;
    }
    /**
     * Set host string for this service.
     * @param host - host string in the form of host, host:port,
     * or protocol://host:port
     */
    set host(host) {
        this._host = host;
        if (this._url != null) {
            this._bucket = Location.makeFromBucketSpec(this._url, host);
        }
        else {
            this._bucket = extractBucket(host, this.app.options);
        }
    }
    /**
     * The maximum time to retry uploads in milliseconds.
     */
    get maxUploadRetryTime() {
        return this._maxUploadRetryTime;
    }
    set maxUploadRetryTime(time) {
        validateNumber('time', 
        /* minValue=*/ 0, 
        /* maxValue= */ Number.POSITIVE_INFINITY, time);
        this._maxUploadRetryTime = time;
    }
    /**
     * The maximum time to retry operations other than uploads or downloads in
     * milliseconds.
     */
    get maxOperationRetryTime() {
        return this._maxOperationRetryTime;
    }
    set maxOperationRetryTime(time) {
        validateNumber('time', 
        /* minValue=*/ 0, 
        /* maxValue= */ Number.POSITIVE_INFINITY, time);
        this._maxOperationRetryTime = time;
    }
    async _getAuthToken() {
        const auth = this._authProvider.getImmediate({ optional: true });
        if (auth) {
            const tokenData = await auth.getToken();
            if (tokenData !== null) {
                return tokenData.accessToken;
            }
        }
        return null;
    }
    async _getAppCheckToken() {
        const appCheck = this._appCheckProvider.getImmediate({ optional: true });
        if (appCheck) {
            const result = await appCheck.getToken();
            // TODO: What do we want to do if there is an error getting the token?
            // Context: appCheck.getToken() will never throw even if an error happened. In the error case, a dummy token will be
            // returned along with an error field describing the error. In general, we shouldn't care about the error condition and just use
            // the token (actual or dummy) to send requests.
            return result.token;
        }
        return null;
    }
    /**
     * Stop running requests and prevent more from being created.
     */
    _delete() {
        this._deleted = true;
        this._requests.forEach(request => request.cancel());
        this._requests.clear();
        return Promise.resolve();
    }
    /**
     * Returns a new firebaseStorage.Reference object referencing this StorageService
     * at the given Location.
     */
    _makeStorageReference(loc) {
        return new Reference(this, loc);
    }
    /**
     * @param requestInfo - HTTP RequestInfo object
     * @param authToken - Firebase auth token
     */
    _makeRequest(requestInfo, authToken, appCheckToken) {
        if (!this._deleted) {
            const request = makeRequest(requestInfo, this._appId, authToken, appCheckToken, this._pool, this._firebaseVersion);
            this._requests.add(request);
            // Request removes itself from set when complete.
            request.getPromise().then(() => this._requests.delete(request), () => this._requests.delete(request));
            return request;
        }
        else {
            return new FailRequest(appDeleted());
        }
    }
    async makeRequestWithTokens(requestInfo) {
        const [authToken, appCheckToken] = await Promise.all([
            this._getAuthToken(),
            this._getAppCheckToken()
        ]);
        return this._makeRequest(requestInfo, authToken, appCheckToken);
    }
}

/**
 * @license
 * Copyright 2020 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Uploads data to this object's location.
 * The upload can be paused and resumed, and exposes progress updates.
 * @public
 * @param ref - StorageReference where data should be uploaded.
 * @param data - The data to upload.
 * @param metadata - Metadata for the data to upload.
 * @returns An UploadTask
 */
function uploadBytesResumable$1(ref, data, metadata) {
    ref = getModularInstance(ref);
    return uploadBytesResumable(ref, data, metadata);
}
/**
 * A promise that resolves with the metadata for this object. If this
 * object doesn't exist or metadata cannot be retreived, the promise is
 * rejected.
 * @public
 * @param ref - StorageReference to get metadata from.
 */
function getMetadata$2(ref) {
    ref = getModularInstance(ref);
    return getMetadata$1(ref);
}
/**
 * Updates the metadata for this object.
 * @public
 * @param ref - StorageReference to update metadata for.
 * @param metadata - The new metadata for the object.
 *     Only values that have been explicitly set will be changed. Explicitly
 *     setting a value to null will remove the metadata.
 * @returns A promise that resolves with the new metadata for this object.
 */
function updateMetadata$2(ref, metadata) {
    ref = getModularInstance(ref);
    return updateMetadata$1(ref, metadata);
}
/**
 * List items (files) and prefixes (folders) under this storage reference.
 *
 * List API is only available for Firebase Rules Version 2.
 *
 * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
 * delimited folder structure.
 * Refer to GCS's List API if you want to learn more.
 *
 * To adhere to Firebase Rules's Semantics, Firebase Storage does not
 * support objects whose paths end with "/" or contain two consecutive
 * "/"s. Firebase Storage List API will filter these unsupported objects.
 * list() may fail if there are too many unsupported objects in the bucket.
 * @public
 *
 * @param ref - StorageReference to get list from.
 * @param options - See ListOptions for details.
 * @returns A Promise that resolves with the items and prefixes.
 *      `prefixes` contains references to sub-folders and `items`
 *      contains references to objects in this folder. `nextPageToken`
 *      can be used to get the rest of the results.
 */
function list$2(ref, options) {
    ref = getModularInstance(ref);
    return list$1(ref, options);
}
/**
 * List all items (files) and prefixes (folders) under this storage reference.
 *
 * This is a helper method for calling list() repeatedly until there are
 * no more results. The default pagination size is 1000.
 *
 * Note: The results may not be consistent if objects are changed while this
 * operation is running.
 *
 * Warning: listAll may potentially consume too many resources if there are
 * too many results.
 * @public
 * @param ref - StorageReference to get list from.
 *
 * @returns A Promise that resolves with all the items and prefixes under
 *      the current storage reference. `prefixes` contains references to
 *      sub-directories and `items` contains references to objects in this
 *      folder. `nextPageToken` is never returned.
 */
function listAll$1(ref) {
    ref = getModularInstance(ref);
    return listAll(ref);
}
/**
 * Returns the download URL for the given Reference.
 * @public
 * @returns A promise that resolves with the download
 *     URL for this object.
 */
function getDownloadURL$1(ref) {
    ref = getModularInstance(ref);
    return getDownloadURL(ref);
}
/**
 * Deletes the object at this location.
 * @public
 * @param ref - StorageReference for object to delete.
 * @returns A promise that resolves if the deletion succeeds.
 */
function deleteObject$2(ref) {
    ref = getModularInstance(ref);
    return deleteObject$1(ref);
}
function ref$1(serviceOrRef, pathOrUrl) {
    serviceOrRef = getModularInstance(serviceOrRef);
    return ref(serviceOrRef, pathOrUrl);
}
/**
 * @internal
 */
function _getChild$1(ref, childPath) {
    return _getChild(ref, childPath);
}

/**
 * @license
 * Copyright 2020 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
class UploadTaskSnapshotCompat {
    constructor(_delegate, task, ref) {
        this._delegate = _delegate;
        this.task = task;
        this.ref = ref;
    }
    get bytesTransferred() {
        return this._delegate.bytesTransferred;
    }
    get metadata() {
        return this._delegate.metadata;
    }
    get state() {
        return this._delegate.state;
    }
    get totalBytes() {
        return this._delegate.totalBytes;
    }
}

/**
 * @license
 * Copyright 2020 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
class UploadTaskCompat {
    constructor(_delegate, _ref) {
        this._delegate = _delegate;
        this._ref = _ref;
        this.cancel = this._delegate.cancel.bind(this._delegate);
        this.catch = this._delegate.catch.bind(this._delegate);
        this.pause = this._delegate.pause.bind(this._delegate);
        this.resume = this._delegate.resume.bind(this._delegate);
    }
    get snapshot() {
        return new UploadTaskSnapshotCompat(this._delegate.snapshot, this, this._ref);
    }
    then(onFulfilled, onRejected) {
        return this._delegate.then(snapshot => {
            if (onFulfilled) {
                return onFulfilled(new UploadTaskSnapshotCompat(snapshot, this, this._ref));
            }
        }, onRejected);
    }
    on(type, nextOrObserver, error, completed) {
        let wrappedNextOrObserver = undefined;
        if (!!nextOrObserver) {
            if (typeof nextOrObserver === 'function') {
                wrappedNextOrObserver = (taskSnapshot) => nextOrObserver(new UploadTaskSnapshotCompat(taskSnapshot, this, this._ref));
            }
            else {
                wrappedNextOrObserver = {
                    next: !!nextOrObserver.next
                        ? (taskSnapshot) => nextOrObserver.next(new UploadTaskSnapshotCompat(taskSnapshot, this, this._ref))
                        : undefined,
                    complete: nextOrObserver.complete || undefined,
                    error: nextOrObserver.error || undefined
                };
            }
        }
        return this._delegate.on(type, wrappedNextOrObserver, error || undefined, completed || undefined);
    }
}

class ListResultCompat {
    constructor(_delegate, _service) {
        this._delegate = _delegate;
        this._service = _service;
    }
    get prefixes() {
        return this._delegate.prefixes.map(ref => new ReferenceCompat(ref, this._service));
    }
    get items() {
        return this._delegate.items.map(ref => new ReferenceCompat(ref, this._service));
    }
    get nextPageToken() {
        return this._delegate.nextPageToken || null;
    }
}

/**
 * @license
 * Copyright 2020 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
class ReferenceCompat {
    constructor(_delegate, storage) {
        this._delegate = _delegate;
        this.storage = storage;
    }
    get name() {
        return this._delegate.name;
    }
    get bucket() {
        return this._delegate.bucket;
    }
    get fullPath() {
        return this._delegate.fullPath;
    }
    toString() {
        return this._delegate.toString();
    }
    /**
     * @returns A reference to the object obtained by
     * appending childPath, removing any duplicate, beginning, or trailing
     * slashes.
     */
    child(childPath) {
        const reference = _getChild$1(this._delegate, childPath);
        return new ReferenceCompat(reference, this.storage);
    }
    get root() {
        return new ReferenceCompat(this._delegate.root, this.storage);
    }
    /**
     * @returns A reference to the parent of the
     * current object, or null if the current object is the root.
     */
    get parent() {
        const reference = this._delegate.parent;
        if (reference == null) {
            return null;
        }
        return new ReferenceCompat(reference, this.storage);
    }
    /**
     * Uploads a blob to this object's location.
     * @param data - The blob to upload.
     * @returns An UploadTask that lets you control and
     * observe the upload.
     */
    put(data, metadata) {
        this._throwIfRoot('put');
        return new UploadTaskCompat(uploadBytesResumable$1(this._delegate, data, metadata), this);
    }
    /**
     * Uploads a string to this object's location.
     * @param value - The string to upload.
     * @param format - The format of the string to upload.
     * @returns An UploadTask that lets you control and
     * observe the upload.
     */
    putString(value, format = StringFormat.RAW, metadata) {
        this._throwIfRoot('putString');
        const data = dataFromString(format, value);
        const metadataClone = Object.assign({}, metadata);
        if (metadataClone['contentType'] == null && data.contentType != null) {
            metadataClone['contentType'] = data.contentType;
        }
        return new UploadTaskCompat(new UploadTask(this._delegate, new FbsBlob(data.data, true), metadataClone), this);
    }
    /**
     * List all items (files) and prefixes (folders) under this storage reference.
     *
     * This is a helper method for calling list() repeatedly until there are
     * no more results. The default pagination size is 1000.
     *
     * Note: The results may not be consistent if objects are changed while this
     * operation is running.
     *
     * Warning: listAll may potentially consume too many resources if there are
     * too many results.
     *
     * @returns A Promise that resolves with all the items and prefixes under
     *  the current storage reference. `prefixes` contains references to
     *  sub-directories and `items` contains references to objects in this
     *  folder. `nextPageToken` is never returned.
     */
    listAll() {
        return listAll$1(this._delegate).then(r => new ListResultCompat(r, this.storage));
    }
    /**
     * List items (files) and prefixes (folders) under this storage reference.
     *
     * List API is only available for Firebase Rules Version 2.
     *
     * GCS is a key-blob store. Firebase Storage imposes the semantic of '/'
     * delimited folder structure. Refer to GCS's List API if you want to learn more.
     *
     * To adhere to Firebase Rules's Semantics, Firebase Storage does not
     * support objects whose paths end with "/" or contain two consecutive
     * "/"s. Firebase Storage List API will filter these unsupported objects.
     * list() may fail if there are too many unsupported objects in the bucket.
     *
     * @param options - See ListOptions for details.
     * @returns A Promise that resolves with the items and prefixes.
     * `prefixes` contains references to sub-folders and `items`
     * contains references to objects in this folder. `nextPageToken`
     * can be used to get the rest of the results.
     */
    list(options) {
        return list$2(this._delegate, options || undefined).then(r => new ListResultCompat(r, this.storage));
    }
    /**
     * A promise that resolves with the metadata for this object. If this
     * object doesn't exist or metadata cannot be retreived, the promise is
     * rejected.
     */
    getMetadata() {
        return getMetadata$2(this._delegate);
    }
    /**
     * Updates the metadata for this object.
     * @param metadata - The new metadata for the object.
     * Only values that have been explicitly set will be changed. Explicitly
     * setting a value to null will remove the metadata.
     * @returns A promise that resolves
     * with the new metadata for this object.
     * @see firebaseStorage.Reference.prototype.getMetadata
     */
    updateMetadata(metadata) {
        return updateMetadata$2(this._delegate, metadata);
    }
    /**
     * @returns A promise that resolves with the download
     * URL for this object.
     */
    getDownloadURL() {
        return getDownloadURL$1(this._delegate);
    }
    /**
     * Deletes the object at this location.
     * @returns A promise that resolves if the deletion succeeds.
     */
    delete() {
        this._throwIfRoot('delete');
        return deleteObject$2(this._delegate);
    }
    _throwIfRoot(name) {
        if (this._delegate._location.path === '') {
            throw invalidRootOperation(name);
        }
    }
}

/**
 * @license
 * Copyright 2020 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * A service that provides firebaseStorage.Reference instances.
 * @param opt_url gs:// url to a custom Storage Bucket
 */
class StorageServiceCompat {
    constructor(app, _delegate) {
        this.app = app;
        this._delegate = _delegate;
        this.INTERNAL = {
            /**
             * Called when the associated app is deleted.
             */
            delete: () => {
                return this._delegate._delete();
            }
        };
    }
    get maxOperationRetryTime() {
        return this._delegate.maxOperationRetryTime;
    }
    get maxUploadRetryTime() {
        return this._delegate.maxUploadRetryTime;
    }
    /**
     * Returns a firebaseStorage.Reference for the given path in the default
     * bucket.
     */
    ref(path) {
        if (isUrl(path)) {
            throw invalidArgument('ref() expected a child path but got a URL, use refFromURL instead.');
        }
        return new ReferenceCompat(ref$1(this._delegate, path), this);
    }
    /**
     * Returns a firebaseStorage.Reference object for the given absolute URL,
     * which must be a gs:// or http[s]:// URL.
     */
    refFromURL(url) {
        if (!isUrl(url)) {
            throw invalidArgument('refFromURL() expected a full URL but got a child path, use ref() instead.');
        }
        try {
            Location.makeFromUrl(url, this._delegate.host);
        }
        catch (e) {
            throw invalidArgument('refFromUrl() expected a valid full URL but got an invalid one.');
        }
        return new ReferenceCompat(ref$1(this._delegate, url), this);
    }
    setMaxUploadRetryTime(time) {
        this._delegate.maxUploadRetryTime = time;
    }
    setMaxOperationRetryTime(time) {
        this._delegate.maxOperationRetryTime = time;
    }
    useEmulator(host, port) {
        useStorageEmulator(this._delegate, host, port);
    }
}

const name = "@firebase/storage";
const version = "0.5.3";

/**
 * @license
 * Copyright 2020 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
/**
 * Type constant for Firebase Storage.
 */
const STORAGE_TYPE = 'storage';
function factory(container, { instanceIdentifier: url }) {
    // Dependencies
    // TODO: This should eventually be 'app-compat'
    const app = container.getProvider('app').getImmediate();
    const authProvider = container.getProvider('auth-internal');
    const appCheckProvider = container.getProvider('app-check-internal');
    // TODO: get StorageService instance from component framework instead
    // of creating a new one.
    const storageServiceCompat = new StorageServiceCompat(app, new StorageService(app, authProvider, appCheckProvider, new XhrIoPool(), url, firebase.SDK_VERSION));
    return storageServiceCompat;
}
function registerStorage(instance) {
    const namespaceExports = {
        // no-inline
        TaskState,
        TaskEvent,
        StringFormat,
        Storage: StorageService,
        Reference: ReferenceCompat
    };
    instance.INTERNAL.registerComponent(new Component(STORAGE_TYPE, factory, "PUBLIC" /* PUBLIC */)
        .setServiceProps(namespaceExports)
        .setMultipleInstances(true));
    instance.registerVersion(name, version);
}
registerStorage(firebase);

export { registerStorage };
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